Toilet bowl washer fluid reservoir drain valve spacer body

ABSTRACT

A toilet bowl washer fluid reservoir drain valve spacer body is capable of mounting flapper action valves capable of achieving improvement of water-saving effect on every existing toilet bowl washer fluid reservoir. The toilet bowl washer fluid reservoir drain valve spacer body includes a main body section which has corn shape capable of being seated on the upper edge section of a drain valve seat while sticking fast thereto and opening section is provided at underneath of the main body section and upper edge section of the corn shaped main body section is capable of detachably sticking fast to annular seal ring of the flapper action valve, and a holding section for holding an overflow pipe “f” and for support the flapper action valve “c” in such a way as to be able to swing the flapper action valve in the vertical direction, in which the holding section is protruded from the main body section to form the toilet bowl washer fluid reservoir drain valve spacer body.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a toilet bowl washer fluid reservoir drain valve spacer body used for a toilet bowl washer fluid reservoir drain valve composed of a drain valve seat and a flapper action valve.

[0003] 2. Description of the related Art

[0004] Conventionally, there is a toilet bowl washer fluid reservoir which is provided with a drain valve therein and which can supply washer fluid into flush toilet bowl of the siphon jet system.

[0005] At present, concerning the drain valve described above, roughly classified as illustrated in FIG. 9, there are two kinds of drain valves. Firstly, as exemplary illustrated in FIG. 9(1), there is one type (hereinafter referred to as “A type”) which is composed of a drain valve seat “a1” from which overflow pipe “a3” is extended and whose upper edge portion is formed with required oblique angle, and a drain valve body “a2” with approximately spoon shape which is supported by a shaft in such a way that the drain valve body “a2” is capable of swinging in vertical direction in the vicinity of lower area of the overflow pipe and which is seated on the drain valve seat so as to cover the drain valve seat.

[0006] Secondly, as exemplary illustrated in FIG. 9(2), there is the other type (hereinafter referred to as “B type”) which is composed of a drain valve seat “b1” in which an overflow pipe “b3” is extended from outer side surface of the drain valve seat “b1”, which the drain valve seat “b1” has corn shape such that inner side surface enlarges in upper direction and which has openings at the middle portion thereof shaped as radial pattern in the direction of diameter, a drain valve body “b2” with shape of hollow ball which is seated on inclined inner surface of the drain valve seat in such a way as to stick fast to the inclined inner surface of the drain valve seat and which has an opening at underneath thereof, and a guide pole “b4” which hangs from internal upper portion of the drain valve body and which is inserted in a hole provided at the center of the opening of the drain valve seat and which is capable of moving in vertical direction within the hole, wherein the drain valve seat “b1” and the drain valve body “b2” are connected by the guide pole “b4”.

[0007] In any of the drain valves, the drain valve body is connected to a lever handle provided at side surface of the reservoir by line shaped member, in which when the lever handle is manipulated to turn, washer fluid is drained in such a way that the drain valve body is separated from the drain valve seat, and then the whole washer fluid stored in the reservoir is capable of being drained in that the drain valve body is formed so as to store air in the drain valve body in order to maintain open condition of the valve if the valve is opened once (required ascending force is obtained).

[0008] As to amount of drained fluid drained from conventional toilet bowl washer fluid reservoir, which is determined based on design concept of actual manufacture rightfully, the amount of drained fluid is set so that the amount of drained fluid becomes a somewhat larger quantity in order not to generate condition in which a little filth cannot be removed because amount of drained fluid is a little, often, the amount of drained fluid is excessive.

[0009] Thereupon, official gazette of patent No. 2825348 discloses “Amount of Stream Adjustment Free Flapper Action Valve for Toilet Reservoir” which pays attention to problem that excessive amount of drained fluid is made to correct for adequate amount of drained fluid and which brings about a settlement.

[0010] The flapper action valve “c” disclosed in official gazette of patent No. 2825348, as illustrated in FIG. 10, there is provided a spherical cup “c1” which is capable of being inserted in the drain valve seat. Annular seal ring “c2” of the spherical cup, which is capable of sticking fast to upper edge portion of the drain valve seat detachably is provided at upper peripheral surface of the spherical cup “c1”. In addition, hole “c3” is provided at a side wall of the spherical cup “c1”, and discharges air from the internal spherical cup “c1”, and hole “c4” is provided at underneath of the spherical cup “c1” so that amount of stream is passed through the hole “c4”. These holes “c3”, “c4” are ones that connect side surface of the spherical cup in the vicinity of bottom surface of the annular seal ring “c2” of the spherical cup and underneath of spherical cup. The flapper action valve “c” is supported by shaft in such a way as to be able to swing in vertical direction in the vicinity of underneath of the overflow pipe “a3”. In addition, the flapper action valve “c” is connected to the lever handle (not illustrated) provided at side surface of the reservoir by the line shaped member so that the valve is capable of being opened and closed.

[0011] The flapper action valve “c” having such configuration starts to drain washer fluid stored in the reservoir in such a way that the flapper action valve “c” is separated from the drain valve seat upon manipulating to rotate the lever handle. And then, air within internal portion of the spherical cup “c1” is discharged gradually from the hole “c3” provided at a side wall of the spherical cup “c1” in the vicinity of bottom surface of the annular seal ring “c2” simultaneously, part of the washer fluid within the reservoir flows in internal portion of spherical cup “c1” gradually via the hole “c4” provided at the underneath of the spherical cup. During the time the washer fluid flows in the internal portion of the spherical cup, the flapper action valve “c” maintains open condition of the valve.

[0012] In the course of time, the internal portion of the spherical cup “c1” of the flapper action valve “c” which is filled with washer fluid loses buoyant force gradually, and is seated on the drain valve seat “a1” by its own weight. And then, the water stored within the internal portion thereof is discharged from the hole “c4” provided at underneath of the spherical cup “c1”, and then, the flapper action valve “c” returns to initial state.

[0013] The flapper action valve “c” is very appropriate one which is capable of obtaining water-saving effect simply in such a way as to replace the existing drain valve body with the flapper action valve “c”, at present, the flapper action valve “c” is on sale at the general merchandising store such as house improvement center and acquires a good reputation.

[0014] However, this flapper action valve is one which only can cope with the drain valve of A-type described above, namely the flapper action valve can cope with the case that the drain valve of A-type is used. The flapper action valve “c” does not conform to the drain valve of B-type which is distributed largely in the market currently.

SUMMARY OF THE INVENTION

[0015] Thereupon, an object of the present invention is to provide a toilet bowl washer fluid reservoir drain valve spacer body which is capable of mounting the flapper action valve capable of achieving improvement of saving water effect to approximately the whole existing toilet bowl washer fluid reservoir.

[0016] In order to achieve the above mentioned object, according to a first aspect of the present invention, there is provided a toilet bowl washer fluid reservoir drain valve spacer body which comprises a main body section having corn shape capable of being seated on inner side surface and/or upper edge section of a drain valve seat while sticking fast thereto, opening sections provided at underneath of the main body section and an upper edge section of a corn shaped main body section which is capable of sticking fast to annular seal ring of a flapper action valve detachably, and a holding section for holding an overflow pipe and for supporting the flapper action valve in such a way as to be able to swing the flapper action valve in the vertical direction, wherein the holding section is protruded from the main body section to form the toilet bowl washer fluid reservoir drain valve spacer body.

[0017] According to a second aspect of the present invention, there is provided a toilet bowl washer fluid reservoir drain valve spacer body which comprises a main body section having corn shape capable of being seated on inner side surface and/or upper edge section of a drain valve seat while sticking fast thereto, opening sections provided at underneath of the main body section and an upper edge section of a corn shaped main body section which is capable of sticking fast to annular seal ring of a flapper action valve detachably, and a holding section for holding an overflow pipe and for supporting the flapper action valve in such a way as to be able to swing the flapper action valve in the vertical direction, wherein the holding section is protruded from the main body section to form the toilet bowl washer fluid reservoir drain valve spacer body, is arranged between the drain valve seat which is provided with the overflow pipe at the side surface thereof is protruded from internal section of underneath of toilet bowl washer fluid reservoir, and the flapper action valve which is provided with the annular seal ring formed at upper portion periphery surface of hollow corn shape section that is capable of detachably sticking fast to the upper edge section of the main body section and that is capable of being inserted into the drain valve seat, and an interconnecting hole for interconnecting between the hollow corn shape section side surface in the vicinity of the annular seal ring underneath and the corn shape section underneath, and which the flapper action valve is capable of being supported in such a way as to be able to swing in the vertical direction with respect to the overflow pipe or in the vicinity of the overflow pipe.

[0018] According to a third aspect of the present invention, there is provided the toilet bowl washer fluid reservoir drain valve spacer body, in the first aspect, wherein the opening sections have radial shape and a mounting hole is provided at center portion of constituent plane where the opening sections are provided, and there is provided fixing means for fixing the main body section to the drain valve seat via both of a drain valve body guide hole provided in the drain valve seat and the mounting hole.

[0019] According to a fourth aspect of the present invention, there is provided the toilet bowl washer fluid reservoir drain valve spacer body, in the first aspect, wherein the main body section is connected to the holding section via adjusting means which is capable of adjusting angle in the vertical direction of the main body section with respect to the holding section, which is capable of adjusting interval between the main body section and the holding section, or which is capable of adjusting height between the main body section and the drain valve seat.

[0020] According to a fifth aspect of the present invention, there is provided the toilet bowl washer fluid reservoir drain valve spacer body, in the first aspect, wherein the flapper action valve is connected to a lever handle provided at the toilet bowl washer fluid reservoir via a line shaped member, and a float is provided at mid portion of the line shaped member.

[0021] According to a sixth aspect of the present invention, there is provided a toilet bowl washer fluid reservoir drain valve spacer body which comprises a main body section having corn shape capable of being seated on inner side surface and/or upper edge section of a drain valve seat while sticking fast thereto, opening sections provided at underneath of the main body section and an upper edge section of a corn shaped main body section which is capable of sticking fast to annular seal ring of a flapper action valve detachably, and a supporting section for supporting the flapper action valve in such a way as to be able to swing the flapper action valve in the vertical direction, wherein the supporting section is protruded from the main body section to form the toilet bowl washer fluid reservoir drain valve spacer body, is arranged between the drain valve seat which is provided with the overflow pipe at the side surface thereof is protruded from internal section of underneath of toilet bowl washer fluid reservoir, and the flapper action valve which is provided with the annular seal ring formed at upper portion periphery surface of hollow corn shape section that is capable of detachably sticking fast to the upper edge section of the main body section and that is capable of being inserted into the drain valve seat, two arms protruded from the annular seal ring toward outer direction in parallel in which a plurality of general-purpose holes which correspond each other are provided at the arms and an interconnecting hole for interconnecting between the hollow corn shape section side surface in the vicinity of the annular seal ring underneath and the corn shape section underneath, and which is capable of being supported in such a way as to be able to swing in the vertical direction with inner side holes corresponding each other as required holes for support.

[0022] According to a seventh aspect of the present invention, there is provided the toilet bowl washer fluid reservoir drain valve spacer body, in the sixth aspect, wherein the opening sections have radial shape and a mounting hole is provided at center portion of plane where the opening sections are provided, and there is provided fixing means for fixing the main body section to the drain valve seat via both of a drain valve body guide hole provided in the drain valve seat and the mounting hole.

[0023] According to an eighth aspect of the present invention, there is provided the toilet bowl washer fluid reservoir drain valve spacer body, in the sixth aspect, wherein the main body section is connected to the holding section via adjusting means which is capable of adjusting angle in the vertical direction of the main body section with respect to the holding section, which is capable of adjusting interval between the main body section and the holding section, or which is capable of adjusting height between the main body section and the drain valve seat.

[0024] According to a ninth aspect of the present invention, there is provided the toilet bowl washer fluid reservoir drain valve spacer body, in the sixth aspect, wherein there are provided a plurality of general-purpose holes which correspond each other at two arms protruded from the annular seal ring of the flapper action valve in parallel in which the flapper action valve is supported by the supporting section of the main body section in such a way that the flapper action valve can swing with respect to the main body section with arbitrary inner holes of the general-purpose holes as desired holes for support and there is provided a weight that is held in holes corresponding each other with the holes at outer side as holding hole of the general-purpose holes, so that it causes swinging load of the swinging operation to be reduced with the supporting section of the main body section as fulcrum.

[0025] According to a tenth aspect of the present invention, there is provided the toilet bowl washer fluid reservoir drain valve spacer body in the sixth aspect, wherein the flapper action valve is connected to a lever handle provided at the toilet bowl washer fluid reservoir via a line shaped member, and a float is provided at mid portion of the line shaped member.

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The various features of novelty which characterize the invention are pointed out with particularly in the claims annexed to and forming a part of this specification. For a better understanding of the invention, its operating advantages, and specific objects attained by its use, reference should be had to the accompanying drawing and descriptive matter in which there is illustrated and described a preferred embodiment of the invention.

[0027]FIG. 1 is a top plan view illustrating a toilet bowl washer fluid reservoir drain valve spacer body according to a first embodiment of the present invention.

[0028]FIG. 2 is a longitudinal sectional view along the line (A) to (A) of FIG. 1.

[0029]FIG. 3 is a plan view illustrating a toilet bowl washer fluid reservoir drain valve spacer body according to a second embodiment of the present invention.

[0030]FIG. 4 is an enlarged vertical longitudinal sectional view illustrating periphery of mounting hole section in the case that the mounting hole is constituted by ball joint method.

[0031]FIG. 5 is a longitudinal sectional view illustrating the case that the spacer body is mounted on a drain valve seat of B-type.

[0032]FIG. 6 is a longitudinal sectional view illustrating the case that the spacer body is mounted on a drain valve seat of A-type.

[0033]FIG. 7 is a perspective view illustrating condition that the toilet bowl washer fluid reservoir drain valve spacer body according to the third embodiment of the present invention and the flapper action valve supported by the spacer body using shaft are fixed to the drain valve seat.

[0034]FIG. 8 is a perspective view illustrating state that a weight according to the third embodiment of the present invention is mounted on the flapper action valve.

[0035]FIG. 9(1) is a side view illustrating the first conventional drain valve (A-type).

[0036]FIG. 9(2) is a side view illustrating the second conventional drain valve (B-type).

[0037]FIG. 10 is a longitudinal sectional view illustrating the case that the flapper action valve is mounted on the drain valve seat of A-type.

DESCRIPTION OF THE PREFERRED EMBODIMENT

[0038] Next, embodiments of the invention will be described with reference to the drawings below. In the drawings, symbol 1 is a toilet bowl washer fluid reservoir drain valve spacer body, symbol 2 is a drain valve seat, and symbol c is a flapper action valve.

[0039] (First Embodiment)

[0040] As illustrated in FIGS. 1 and 2, the toilet bowl washer fluid reservoir drain valve spacer body 1 according to the first embodiment of the present invention comprises a main body section 11 having external appearance of approximately corn shape, which is provided with O-ring 13 that is seated on upper edge portion 2 a of the drain valve seat at the mid portion thereof and opening section 14 formed in the radial shape for streaming with washer fluid at under portion from the O-ring 13, and a holding section 12 with approximately C-character shape for holding an overflow pipe “f”, in which the main body section 11 and the holding section 12 are subjected to integral molding by using synthetic resin.

[0041] The holding section 12 has required diameter which is somewhat smaller than diameter of the overflow pipe “f”, and is capable of being deformed with elastic deformation. In addition, there are provided a mounting hole 15 for fixing the spacer body 1 depending on types of existing drain valve seats at the center portion of constituent surface which forms the opening section 14 and a supporting shaft 16 for supporting the flapper action valve “c” in such a way as to be able to swing the flapper action valve “c” in the vertical direction that is right angles to opening direction of the C-character shaped holding section 12 is provided at the holding section 12.

[0042] It should be noted that this toilet bowl washer fluid reservoir drain valve spacer body 1 is most preferably formed with injection molding using synthetic resin member, however, its material and manufacturing method are not restricted specifically.

[0043] Next, there will be described about the flapper action valve “c”. The flapper action valve is a float valve used for toilet reservoir, which is commercially available one, for instance, which is a flapper action valve made by Unique Product, Inc. Two parallel arms extended from annular seal ring provided on the flapper action valve. A plurality of general-purpose holes which correspond to each other are provided at the arms. The flapper action valve “c” is supported by supporting shafts 16 of the holding section 12 of the main body section in such a way as to be able to swing in vertical direction that is one perpendicular to opening direction of the holding section 12.

[0044] (Second Embodiment)

[0045]FIG. 3 illustrates the second embodiment. As exemplary illustrated in FIG. 3, the second embodiment of the present invention is provided with a projection section 111 at the side of the main body section 11 and a concave section 121 which is engaged with the projection section 111 at the holding section 12′. The holding section 12′ is separated from the main body section 11′. The holding section 12′ and the main body section 11′ are joined by screws after being adjusted to desired angle in the vertical direction. By this means, when upper surface section of the drain valve seat 2 is out of the horizontal, namely, upper surface section of the drain valve seat 2 has desired angle of inclination, it becomes possible to mount the spacer body 1′ to the drain valve seat easily by performing above described angle adjustment.

[0046] It should be noted that when the spacer body is mounted on the drain valve seat 2 of the B-type, plane of the mounting hole 15 that serves interconnection with the drain valve body guide hole 21 leans, therefore, as exemplary illustrated in FIG. 4, a mounting hole 151 is formed by separated member of ball joint method capable of being swung.

[0047] In addition, a hole section 112 for inserting bolt to the projection section 111 of the side of the main body section, as exemplary illustrated in FIG. 3, the shape of the hole may preferably be oval, that can adjust interval between the main body section 11′ and the holding section 12′, by this formation, it becomes possible to cope with various kinds of toilet bowl washer fluid reservoirs in which slant distance between the drain valve seat 2 and the overflow pipe “f” differs, thus, this brings high integrity system.

[0048] Further, when height of the main body section is different from height of the drain valve seat, it becomes possible to mount the spacer body 1′ on the drain valve seat upon adjusting height between the main body section 11′ and the holding section 12′.

[0049] It should be noted that adjusting means of the present embodiment is comprised of this angle adjusting mechanism, interval adjusting mechanism and height adjusting mechanism.

[0050] The toilet bowl washer fluid reservoir drain valve spacer body 1 constituted as described in the first embodiment and the second embodiment is mounted on the drain valve seat 2 in such a way as the following procedure (FIG. 5).

[0051] Firstly, flange shaped rubber bushing 19 (fixing means) constituted in such a way that a communicating hole 17 is provided and a nut 18 is inserted in the communicating hole 17 at lower end section thereof is inserted into the drain valve body guide hole 21 which is provided at mid portion of the internal section of the drain valve seat.

[0052] Subsequently, the holding section 12 is set to the overflow pipe “f”. When the holding section 12 is pressed to the overflow pipe “f”, ends of the holding section 12 are spread along the periphery of the overflow pipe “f”, and then the holding section 12 is further pressed to the overflow pipe “f” so that the holding section 12 holds the overflow pipe “f”.

[0053] And then, the main body section 11 is made to seat on the drain valve seat 2 while sliding the holding section 12 along the overflow pipe “f” until O-ring 13 is somewhat pressed to the upper edge portion 2 a of the drain valve seat 2. At this time, if the water-resisting bonding adhesive is applied to internal surface in the vicinity of lower portion of the upper edge section 2 a beforehand, it is possible to appropriately dissolve fear of water-leakage between the main body section 11 and the drain valve seat 2, furthermore, the main body section 11 is strongly fixed to the drain valve seat 2.

[0054] Furthermore, upon inserting the bolt “g” from the mounting hole 15 and putting the screws to the bolt “g”, the rubber bushing 19 positioned at lower section 2 b of the opening section provided at the mid portion of the internal portion of the drain valve seat with the radial shape in the direction of pipe diameter is deformed in such a way that diameter of the rubber bushing 19 is enlarged, so that the rubber bushing suppresses position deviation of the spacer body 1 to upper direction, simultaneously, the spacer body 1 is strongly fixed to the drain valve seat 2.

[0055] Lastly, the flapper action valve “c” is made to engage to the supporting shaft so as to be able to swing in the vertical direction, so that mounting operation is terminated.

[0056] The flapper action valve “c” is connected to the lever handle (not illustrated) provided at toilet bowl washer fluid reservoir via the line shaped member 22, and hollow float 23 is provided at mid portion of the line shaped member 22 The float 23 facilitates rotation of the lever handle while utilizing its buoyant force, and prevents that the flapper action valve closes soon caused by water pressure and/or water flow at the time of draining.

[0057] It should be noted that when distance between the drain valve seat 2 and the overflow pipe “f” differs from distance dimension (distance between center of the holding section and the center of the main body section) of the spacer body 1, this can be dissolved upon adjusting distance between the main body section 11′ and the holding section 12′ via the oval hole 112.

[0058] In addition, if the spacer body 1′ of the aspect in which angle of the spacer body 1 is adjustable in the upper or lower direction for the desired angle is used while using the drain valve body of A-type without change, it is possible to establish water level to arbitrary position in which change takes place from open valve state to close valve state, that is determined by angle of gradient of the drain valve seat upper edge portion 2 a and the drain valve body, so that it is possible to obtain water saving effect without using the flapper action valve “c”.

[0059] Further, as exemplary illustrated in FIG. 6, the spacer bodies 1, 1′ are capable of being mounted even though the drain valve body of A-type is replaced to the flapper action valve “c”.

[0060] (Third Embodiment)

[0061] The third embodiment of the present invention will be described referring to the drawings. In the present embodiment, the flapper action valve “c” is combined to the main body section 11 in such a way that the flapper action valve “c” can swing in the vertical direction with respect to the main body section 11. The main body section 11 and the flapper action valve “c” are arranged on the drain valve seat 2 in such a way that protruded section formed by the main body section 11 and the flapper action valve “c” is made to steer arbitrary desired direction so that the protruded section does not interfere with the overflow pipe and/or the neighborhood of the overflow pipe. FIG. 7 is an explanation view illustrating relationship between the flapper action valve “c” and the main body section 11. A plurality of general-purpose holes which correspond each other are provided at arms of the flapper action valve “c”. Arbitrary two holes which correspond to each other in the vicinity of the flapper action valve main body from among the general-purpose holes are taken to as desired holes for supporting the main body section 11, and the holes are engaged with supporting shaft 16 of the supporting section 121 of the main body section 11. The flapper action valve “c” is supported by the supporting shaft 16 of the supporting section 121 in such a way as to be able to swing in the vertical direction that is perpendicular to the opening direction as illustrated in the drawing.

[0062]FIG. 8 is an explanation view illustrating relationship between the flapper action valve “c” and a weight 24. The weight 24 is mounted into holes provided at the most outer section from among the plurality of the holes provided at the arms of the flapper action valve “c”. It is preferable that the weight is formed by metal in order to secure desired weight per minimum volume, however, quality of material is not restricted if specific gravity is not less than 1, and the material is insoluble in water. Shape of the weight 24 is not restricted except for mounting portion to the flapper action valve “c”. The weight 24 is mounted into the hole provided at the outer portion of the arms of the flapper action valve “c”, however, arbitrary mounting method is good, for instance, respective grooves are provided in the vicinity of both ends sections of the weight 24, and the weight 24 is mounted directly into the holes at the outer side of the arms of the flapper action valve “c”. It is also preferable that the weight 24 is mounted into the holes by using mounting member such as E-ring, O-ring and so forth. Further, there is provided stopper section at one end section of the weight 24 and a groove in the vicinity of the other end section of the weight 24. The weight 24 is inserted into the holes and is mounted by the mounting member such as E-ring, O-ring and so forth.

[0063] The toilet bowl washer fluid reservoir drain valve spacer body 1 constituted as described in the third embodiment is mounted on the drain valve seat 2 of the B-type in such a way as the following procedure.

[0064] Firstly, flange shaped rubber bushing 19 (fixing means) constituted in such a way that a communicating hole 17 is provided and a nut 18 is inserted in the communicating hole 17 at lower end section thereof is inserted into the drain valve body guide hole 21 which is provided at mid portion of the internal section of the drain valve seat.

[0065] And then, the main body section 11 is made to seat on the drain valve seat 2 until O-ring 13 is somewhat pressed to the upper edge portion 2 a of the drain valve seat 2. At this time, if the water-resisting bonding adhesive is applied to internal surface in the vicinity of lower portion of the upper edge section 2 a beforehand, it is possible to appropriately dissolve fear of water-leakage between the main body section 11 and the drain valve seat 2, furthermore, the main body section 11 is strongly fixed to the drain valve seat 2. The supporting section 121 protruded to outer direction from the main body section 11 is capable of adopting arbitrary direction, thus the supporting section 121 is not engaged with the overflow pipe. Accordingly, even though there is an obstruction in the vicinity of the overflow pipe, state of affairs in which the main body section 11 cannot be mounted on the drain valve seat 2 does not take place. Engaged section between the main body section 11 and the flapper action valve “c” does not interfere with the obstruction in the vicinity of the overflow pipe. Accordingly, in every case, the main body section 11 can be mounted on the drain valve seat 2.

[0066] The flapper action valve “c” is connected to the lever handle (not illustrated) provided at toilet bowl washer fluid reservoir via the line shaped member 22, and hollow float 23 is provided at mid portion of the line shaped member 22. Further, the weight 24 is provided at the arms of the flapper action valve “c”. The float 23 and the weight 24 facilitate rotation of the lever handle, and prevents that the flapper action valve closes soon caused by water pressure and/or water flow at the time of draining.

[0067] As described above, according to the present invention, the main body section of the toilet bowl washer fluid reservoir drain valve spacer body is provided with the holding section which is engaged with the overflow pipe and supports the flapper action valve in such a way that the flapper action valve is capable of swinging in the vertical direction, whereby even though the drain valve of B-type with no supporting section is used, it is possible to use the flapper action valve which brings saving water effect.

[0068] Further, according to the present invention, since the main body section of the toilet bowl washer fluid reservoir drain valve spacer body is capable of being fixed to the drain valve seat via both of the mounting hole and the drain valve body guide hole which is provided beforehand, it is possible to fix strongly the toilet bowl washer fluid reservoir drain valve spacer body to the drain valve seat without preparing mounting means separately for fixing the toilet bowl washer fluid reservoir drain valve spacer body to the drain valve seat.

[0069] Furthermore, according to the present invention, when upper surface section of the drain valve seat is out of the horizontal, namely, upper surface section of the drain valve seat has desired angle of inclination, it becomes possible to mount the spacer body on the drain valve seat easily. And when slant distance between the drain valve seat and the overflow pipe differs, interval adjustment between the main body section and the holding section is performed so that the toilet bowl washer fluid reservoir drain valve spacer body is capable of being mounted on the drain valve seat easily, thus it becomes possible to cope with various kinds of toilet bowl washer fluid reservoirs, accordingly, it is possible to provide very appropriate toilet bowl washer fluid reservoir drain valve spacer body.

[0070] Furthermore, according to the present invention, the flapper action valve is connected to the lever handle provided at toilet bowl washer fluid reservoir via the line shaped member, and hollow float is provided at mid portion of the line shaped member. There is the effect that the float facilitates rotation of the lever handle while utilizing its buoyant force, and prevents that the flapper action valve closes soon caused by water pressure and/or water flow at the time of draining.

[0071] Furthermore, according to the present invention, the flapper action valve is supported in such a way that the flapper action valve can swing in the vertical direction with the supporting section provided at the main body section as a fulcrum. The supporting shaft of supporting section of the main body section is engaged with the hole of the arms of the flapper action valve, and then this engaged section is protruded outward. However, since it is possible to control its protruded direction arbitrary, interference between the engaged section and the overflow pipe and/or neighborhood of the overflow pipe is capable of being avoided. Consequently, although there are obstructions in the vicinity of the overflow pipe, the main body section 11 and the flapper action valve “c” which is supported by the main body section 11 cannot fail to be mounted to the drain valve seat 2.

[0072] Furthermore, according to the present invention, since the main body section of the toilet bowl washer fluid reservoir drain valve spacer body is capable of being fixed to the drain valve seat via both of the mounting hole and the drain valve body guide hole which is provided beforehand, it is possible to fix strongly the toilet bowl washer fluid reservoir drain valve spacer body to the drain valve seat with the engaged section protruded outward steered in arbitrary direction without preparing mounting means separately for fixing the toilet bowl washer fluid reservoir drain valve spacer body to the drain valve seat.

[0073] Furthermore, according to the present invention, when upper surface section of the drain valve seat is out of the horizontal, namely, upper surface section of the drain valve seat has desired angle of inclination, it becomes possible to mount the spacer body on the drain valve seat easily with the engaged section protruded outward steered in arbitrary direction. And when slant distance between the drain valve seat and the overflow pipe differs, interval adjustment between the main body section and the holding section is performed so that the toilet bowl washer fluid reservoir drain valve spacer body is capable of being mounted on the drain valve seat easily with the engaged section protruded outward steered in arbitrary direction. When height of the main body section is different from height of the drain valve seat, it becomes possible to mount the spacer body on the drain valve seat upon adjusting height between the main body section and the holding section with the engaged section protruded outward steered in arbitrary direction.

[0074] Furthermore, according to the present invention, arbitrary inner holes of the plurality of holes provided at the arms extended outward in parallel from the annular seal ring of the flapper action valve are taken to be desired holes for support, and the inner holes are engaged with the supporting section of the main body section in such a way that the flapper action valve can swing with respect to the main body section, while there is provided the weight at the outer holes of the arms in order to reduce swinging load of swinging operation with supporting section of the flapper action valve as a fulcrum, whereby there is the effect that the weight of the arms of the flapper action valve facilitates rotation of the lever handle, and prevents that the flapper action valve closes soon caused by water pressure and/or water flow at the time of draining.

[0075] Furthermore, according to the present invention, the flapper action valve supported by the supporting section of the main body section is seated on the drain valve seat with the engaged section between the arms of the flapper action valve and the main body section protruded outward steered in arbitrary direction, and the flapper action valve is connected to the lever handle provided at toilet bowl washer fluid reservoir via the line shaped member, and hollow float is provided at mid portion of the line shaped member. There is the effect that the operation of the float and the weight facilitates rotation of the lever handle, and prevents that the flapper action valve closes soon caused by water pressure and/or water flow at the time of draining. 

What is claimed is:
 1. A toilet bowl washer fluid reservoir drain valve spacer body comprising: a main body section having corn shape capable of being seated on inner side surface and/or upper edge section of a drain valve seat while sticking fast thereto, opening sections provided at underneath of the main body section and an upper edge section of a corn shaped main body section which is capable of sticking fast to annular seal ring of a flapper action valve detachably; and a holding section for holding an overflow pipe and for supporting the flapper action valve in such a way as to be able to swing the flapper action valve in the vertical direction, wherein the holding section is protruded from the main body section to form the toilet bowl washer fluid reservoir drain valve spacer body.
 2. A toilet bowl washer fluid reservoir drain valve spacer body which comprises a main body section having corn shape capable of being seated on inner side surface and/or upper edge section of a drain valve seat while sticking fast thereto, opening sections provided at underneath of the main body section and an upper edge section of a corn shaped main body section which is capable of sticking fast to annular seal ring of a flapper action valve detachably, and a holding section for holding an overflow pipe and for supporting the flapper action valve in such a way as to be able to swing in the vertical direction, wherein the holding section is protruded from the main body section to form the toilet bowl washer fluid reservoir drain valve spacer body, is arranged between the drain valve seat which is provided with the overflow pipe at the side surface thereof is protruded from internal section of underneath of toilet bowl washer fluid reservoir, and the flapper action valve which is provided with the annular seal ring formed at upper portion periphery surface of hollow corn shape section that is capable of detachably sticking fast to the upper edge section of the main body section and that is capable of being inserted into the drain valve seat, and an interconnecting hole for interconnecting between the hollow corn shape section side surface in the vicinity of the annular seal ring underneath and the corn shape section underneath, and which is capable of being supported in such a way as to be able to swing in the vertical direction with respect to the overflow pipe or in the vicinity of the overflow pipe.
 3. The toilet bowl washer fluid reservoir drain valve spacer body according to claim 1, wherein the opening sections have radial shape and a mounting hole is provided at center portion of constituent plane where the opening sections are provided, and there is provided fixing means for fixing the main body section to the drain valve seat via both of a drain valve body guide hole provided in the drain valve seat and the mounting hole.
 4. The toilet bowl washer fluid reservoir drain valve spacer body according to claim 1, wherein the main body section is connected to the holding section via adjusting means which is capable of adjusting angle in the vertical direction of the main body section with respect to the holding section, which is capable of adjusting interval between the main body section and the holding section, or which is capable of adjusting height between the main body section and the drain valve seat.
 5. The toilet bowl washer fluid reservoir drain valve spacer body according to claim 1, wherein the flapper action valve is connected to a lever handle provided at the toilet bowl washer fluid reservoir via a line shaped member, and a float is provided at mid portion of the line shaped member.
 6. A toilet bowl washer fluid reservoir drain valve spacer body which comprises a main body section having corn shape capable of being seated on inner side surface and/or upper edge section of a drain valve seat while sticking fast thereto, opening sections provided at underneath of the main body section and an upper edge section of a corn shaped main body section which is capable of detachably sticking fast to annular seal ring of a flapper action valve, and a supporting section for supporting the flapper action valve in such a way as to be able to swing the flapper action valve in the vertical direction, wherein the supporting section is protruded from the main body section to form the toilet bowl washer fluid reservoir drain valve spacer body, is arranged between the drain valve seat which is provided with the overflow pipe at the side surface thereof is protruded from internal section of underneath of toilet bowl washer fluid reservoir, and the flapper action valve which is provided with the annular seal ring formed at upper portion periphery surface of hollow corn shape section that is capable of detachably sticking fast to the upper edge section of the main body section and that is capable of being inserted into the drain valve seat, two arms protruded from the annular seal ring toward outer direction in parallel in which a plurality of general-purpose holes which correspond each other are provided at the arms and an interconnecting hole for interconnecting between the hollow corn shape section side surface in the vicinity of the annular seal ring underneath and the corn shape section underneath, and which is capable of being supported in such a way as to be able to swing in the vertical direction with inner side holes corresponding each other as required holes for support.
 7. The toilet bowl washer fluid reservoir drain valve spacer body according to claim 6, wherein the opening sections have radial shape and a mounting hole is provided at center portion of plane where the opening sections are provided, and there is provided fixing means for fixing the main body section to the drain valve seat via both of a drain valve body guide hole provided in the drain valve seat and the mounting hole.
 8. The toilet bowl washer fluid reservoir drain valve spacer body according to claim 6, wherein the main body section is connected to the holding section via adjusting means which is capable of adjusting angle in the vertical direction of the main body section with respect to the holding section, which is capable of adjusting interval between the main body section and the holding section, or which is capable of adjusting height between the main body section and the drain valve seat.
 9. The toilet bowl washer fluid reservoir drain valve spacer body according to claim 6, wherein there are provided a plurality of general-purpose holes which correspond each other at two arms protruded from the annular seal ring of the flapper action valve in parallel in which the flapper action valve is supported by the supporting section of the main body section in such a way that the flapper action valve can swing with respect to the main body section with arbitrary inner holes of the general-purpose holes as desired holes for support and there is provided a weight that is held in holes corresponding each other with the holes at outer side as holding hole of the general-purpose holes, so that it causes swinging load of the swinging operation to be reduced with the supporting section of the main body section as fulcrum.
 10. The toilet bowl washer fluid reservoir drain valve spacer body according to claim 6, wherein the flapper action valve is connected to a lever handle provided at the toilet bowl washer fluid reservoir via a line shaped member, and a float is provided at mid portion of the line shaped member. 